Ford Mustang (1999-2004) Service Manual: Transmission Description (Description and Operation)
The 4R70W has the following features:
- Wide ratio gears
- Four speeds
- Rear wheel drive
- Automatic
- Electronic shift
- Torque converter clutch control
- Line pressure controls
The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.
4R70W Automatic Transmission

Automatic Transaxle/Transmission
General Specifications
a - MERCON V is not interchangeable at this time with the current MERCON
fluids. Check the
transmission fluid level indicator to determine the correct fluid and refer to
the ...
Identification Tags
All vehicles are equipped with a Vehicle Certification Label, located
on the driver side door lock post.
For correct transmission identification, refer to the code in the space
marked TR.
...
Other materials:
A/C Compressor and Clutch Assembly
NOTE: Internal A/C compressor components are not serviced separately.
The FS-10 A/C compressor
is serviced only as an assembly. The A/C clutch pulley, A/C clutch field coil
(19D798) and the shaft
seal are serviceable.
The FS-10 A/C compressor has the follo ...
Transmission (DISASSEMBLY)
Special Tool(s)
Slide Hammer
100-001 (T50T-100-A)
Holding Fixture, Transmission
307-003 (T57L-500-B)
Slide Hammer
307-005 (T59L-100-B)
Remover, Transmission Fluid
Seal
307-048 (T74P-77248-A)
...
Pinion Seal
Special Tool(s)
Installer, Drive Pinion Oil Seal
205-133 (T79P-4676-A)
Removal
1. Remove the pinion flange (4851). For additional information, refer to
Drive Pinion Flange in this
section.
2. Force up the metal flange of the rear axle drive p ...
